Re: [Discuss-gnuradio] Messages getting dropped

[Merlin Chlosta]

On 04.11.2014 09:43, Felix W. wrote:
> Hi list,
> 
> I have a strange problem with one of my custom blocks. It's a char stream
> sink with a message output. It basically takes the input stream, selects a
> few samples, packs them into blobs, makes a pmt::cons out of it and
> publishes the message.

Your issue might be different, but I experienced problems with the block
as well.

Please see bug #751.

--merlin

http://gnuradio.org/redmine/issues/751

> My original QA flowgraph looked like this:
> vector_source_b --> my_custom_block --> pdu_to_tagged_stream -->
> vector_sink_b
> 
> The flowgraph is run with tb.start(); time.sleep(2); tb.stop()
> 
> In this setup, I constantly lose the last of the 3 published packets. I
> made sure that the packets are actually published with a print statement
> right after the call to message_port_pub().
> 
> During debugging, I attached a message_debug block to my_custom_block and
> now all messages are received, even at the vector sink. There has been no
> change to the custom block! I can reproduce the packet loss by commenting
> out the message_debug block.
> 
> Any ideas what is happening here?
> 
> Felix
> 
> 
> 
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